Well as you know my stance on this subject, I believe that if the person is well educated in the area of exotic animals, That it is indeed OK to own them. The only problem with this is who really is or isn't educated enough to own such an animal. As I have personally owned a African Serval, Lynx, Snow leopard, and my current cat which is a F1 Bengal ( Half tabby/ Half Asian leopard cat). Well a lot of people fail to see is that these animals have been domesticated in recent years and are no long able to return to the wild. This also can become a problem with wild animals that go through rehabilitation.
New owners of these animals seems to be the problem they go out and buy one or adopt one thinking oh I've got a cool pet. This is completely the wrong mentality to have when taking interest in purchasing these beautiful animals. With bigger animals or animals that are use to living in a large habitat, they need a lot more space and require a lot more patience.
So as I've stated I believe that it should be OK to own these animals. With that being said I think there should be regulation on who can own these animals at the same time. There is responsible breeders that look into a purchasers background, the size of their house, if they can provide financially for the animal, and the environment that the animal will live in. Sadly not all breeders are this responsible.
Off Topic.
My current cat.